Home / 805,771.38-1,111,966.72-443,232.38

Finding the Fourth Proportional to 805,771.38, 1,111,966.72 and 443,232.38

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Solution

The fourth proportional to 805,771.38, 1,111,966.72 and 443,232.38 is: 611,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,771.38 : 1,111,966.72 = 443,232.38 : x
  2. Step 2: Convert to fraction form
    805,771.38/1,111,966.72 = 443,232.38/x
  3. Step 3: Cross multiply
    805,771.38x = 1,111,966.72 × 443,232.38
  4. Step 4: Simplify right side
    805,771.38x = 492,859,655,786.39
  5. Step 5: Solve for x
    x = 492,859,655,786.39/805,771.38
  6. Step 6: Final answer
    x = 611,661.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.